mikmaxx,

Yes, you can learn to fly with a Butterfly II as a training airplane, but you must be made aware of the fact that while the airplane is about as gentle a flyer as they come, you will still have to learn how to control it. It will take time and several flights to get used to seeing how the model looks in flight and learning what to do to make it go where you want. Crashes are going to be inevitable. They happen often enough even with an instructor.

A simulator can help a lot because it will allow you to learn the basics of model aircraft control without risking an actual model.